US 716197 A
Description (OCR text may contain errors)
`wrench in which the power may be applied UNITED STATES PATENT EEICE..
EDWARD DAUER, OF SULPHUR SPRINGS, MISSOURI, ASSIGNOR OF TWO- THIRDSTO PETER lMCLOON AND NELSON E. MOLOON, OF SULPHUR WRENCH.`
SPECIFICATION feeming part of Lettere Patent Ne. 716,197. dated Deeember 16, 1902.A l Applieation led September 15. 1902. Serial NQ.`1`23,455. (No modelo To all whom it may concern:
`Be it known that I, EDWARD DAUER, of the city of Sulphur Springs, Missouri, `have invented certain new and useful Improvements in Wrenches, of whichv lthe following is a full, clear, and exact description, reference being had to the accom panying drawings, forming `a part hereof. t
My invention relates to improvements in It has for its object to provide a When the handle is `at any desired angle to the plane of the jaw. A
It consists in the peculiar construction and arrangement of parts, which `are hereinafter fully described and which will be more readily `understood by reference to` the accompanying drawings, in which- Figure l is a plan View. Fig-2 is a reversed plan view. Fig. 3 is a side plan View showing portions broken away. Fig. 4. is a transverse section taken along the line 4 Lt in Fig. l.
The jaws A A are slidably mounted upon the transverse bar B and are adjusted by the right and left hand screw C, extending transversely through their bases. The ratchet D is rigidly mounted upon the transverse bar B, andthe handle E is mounted above the ratchet D by means of the pivot F, the end of which is rigidly mounted in the bar B.
The pawl G is slidably mounted in the lonl gitudinal slot H in the lower side of the handle E and is provided ,with the pin I, upon which the bar .I ispivoted at one end. At
-the other end the bar .I is pivoted to the bellcrank lever K by means of the pin L. The
spring N, which is attached to the side of the handle E by means of the pin O. By means of the ratchet-and-pawl -connection between the handle and. the jaws of my wrench the jaws .may be operated by pressure exerted upon the handle when the handle is at any desired angle to or in the plane of the jaws.
Thejaws A are operative at any point within the limits of the transverse bar B, which enables the wrench to be used in the manipulation of small nuts located in situations dificult of access.
-Duplicatejaws of any desired conformation and weight may be substituted at the will of the operator. My wrench-is peculiarly adapted for use in pipework, in which use pipe-A jaws will be substituted. In such use a pipe may be completely turned within a box or casing sufficiently large to admit the revolution of the jaws and transverse bar without releasing the jaws.
Having thus described my invention, what I claim as new, and desire to have secured to me by the grant of Letters Patent, is
A wrench provided with jaws slidably mounted upon a transverse bar and connected by a screw, a ratchet mounted upon the `transverse bar, a handle pivoted to the transverse bar and ratchet and provided with a pawl, a lever connection by which the pawl Amay be released from engagement with the ratchet and a spring by which the pawl is normally held in engagement with the ratchet, substantially as described.
In testimony whereof I affix my signature in presence of two witnesses.
ALFRED A. EIoKs, M. G. IRIoN.